A manufacturing method of a rare earth-transition metal alloy powder and obtd. product

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PROBLEM TO BE SOLVED : To provide a method for manufacturing rare earth-transition metal alloy powder by which inexpensive rare earth-transition metal-nitrogen-type powder having excellent magnetic properties can be obtained and also to provide the resultant rare earth-transition metal alloy powder and rare earth-transition metal-nitrogen-type magnetic powder. SOLUTION : In the method for manufacturing the rare earth-transition metal alloy powder by applying disintegration treatment, acid cleaning treatment, water washing treatment and drying treatment to agglomerates of rare earth- transition metal alloy obtained by a reduction-diffusion process, washing treatment using carbonated water of pH 4.5 to 6 is performed in the course of the water washing treatment.